Which risk increases when hydrofluoroolefin (HFO) leaks occur near open flames?

💡 Explanation

When HFO refrigerant contacts an open flame, thermal decomposition results, forming toxic hydrogen fluoride, because the high temperature causes bond breakage via pyrolysis. Therefore, hydrogen fluoride formation is the key risk, rather than ozone depletion (negligible) or polymerization which requires specific catalysts.

• Which phenomenon arises when a three-phase induction motor operates with a significant voltage imbalance between phases?
• Which process decreases heat extraction when a refrigeration system refrigerant compressor experiences oil fouling?
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